skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: New strategy to the controllable synthesis of CuInS{sub 2} hollow nanospheres and their applications in lithium ion batteries

Abstract

A new strategy has been presented to the controllable synthesis of CuInS{sub 2} hollow nanospheres based on the Cu{sub 2}O solid nanospheres as the precursor in the absence of any surfactant. Specifically, the CuInS{sub 2} hollow nanospheres result from hydrothermal transformation of the intermediate Cu{sub 7}S{sub 4} hollow nanospheres derived from Cu{sub 2}O solid nanosphere precursor by the Kirkendall effect in the conversion process. The CuInS{sub 2} hollow nanospheres with diameters of about 250 nm are assembly of nanoparticles with an average size of 20-30 nm. The composition, structure, and morphology of the Cu{sub 2}O precursor, the Cu{sub 7}S{sub 4} intermediate, and final CuInS{sub 2} product have been, respectively, characterized by X-ray diffraction (XRD), field-emission scanning electron microscopy (FESEM), and transmission electron microscopy (TEM) with selected area electron diffraction (SAED). Different from investigation of photovoltaic properties, in this work, the as-prepared CuInS{sub 2} hollow nanospheres have been explored as anode materials for rechargeable lithium ion batteries. They deliver a large initial discharge capacity of 1144 mAh g{sup -1} and exhibit good cycle performance with a discharge capacity of 265 mAh g{sup -1} after 20 cycles, which are superior to those of CuInS{sub 2} nanoparticles. The suitable surface area and relativelymore » stable structure of the CuInS{sub 2} hollow nanospheres play an important role in their enhanced electrochemical performance as anode materials. - Graphical abstract: CuInS{sub 2} hollow nanospheres was successfully prepared from Cu{sub 2}O solid nanospheres in the absence of any surfactant, which can deliver a large initial discharge capacity of 1144 mAh g{sup -1} and exhibit good cycle performance. Highlights: Black-Right-Pointing-Pointer CuInS{sub 2} hollow nanospheres were synthesized hydrothermally from Cu{sub 2}O nanospheres. Black-Right-Pointing-Pointer The CuInS{sub 2} hollow nanospheres present high discharge capacities as anode materials. Black-Right-Pointing-Pointer Better cycling performance can be attributed to its hollow structure.« less

Authors:
; ;  [1]
  1. School of Chemical Engineering, Hefei University of Technology and Anhui Key Laboratory of Controllable Chemical Reaction and Material Chemical Engineering, Hefei, Anhui 230009 (China)
Publication Date:
OSTI Identifier:
21612890
Resource Type:
Journal Article
Journal Name:
Journal of Solid State Chemistry
Additional Journal Information:
Journal Volume: 186; Other Information: DOI: 10.1016/j.jssc.2011.11.042; PII: S0022-4596(11)00648-7; Copyright (c) 2011 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0022-4596
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; ANODES; COPPER OXIDES; COPPER SULFIDES; ELECTRIC BATTERIES; ELECTRON DIFFRACTION; FIELD EMISSION; HYDROTHERMAL SYNTHESIS; INDIUM SULFIDES; KIRKENDALL EFFECT; LITHIUM IONS; MATERIALS; NANOSTRUCTURES; PARTICLES; PHOTOVOLTAIC EFFECT; SCANNING ELECTRON MICROSCOPY; SOLIDS; SURFACE AREA; SURFACTANTS; TRANSMISSION ELECTRON MICROSCOPY; X-RAY DIFFRACTION; CHALCOGENIDES; CHARGED PARTICLES; COHERENT SCATTERING; COPPER COMPOUNDS; DIFFRACTION; ELECTROCHEMICAL CELLS; ELECTRODES; ELECTRON MICROSCOPY; EMISSION; ENERGY STORAGE SYSTEMS; ENERGY SYSTEMS; INDIUM COMPOUNDS; IONS; MICROSCOPY; OXIDES; OXYGEN COMPOUNDS; PHOTOELECTRIC EFFECT; SCATTERING; SULFIDES; SULFUR COMPOUNDS; SURFACE PROPERTIES; SYNTHESIS; TRANSITION ELEMENT COMPOUNDS

Citation Formats

Zhang Weixin, E-mail: wxzhang@hfut.edu.cn, Hui, Zeng, Zeheng, Yang, and Qiang, Wang. New strategy to the controllable synthesis of CuInS{sub 2} hollow nanospheres and their applications in lithium ion batteries. United States: N. p., 2012. Web. doi:10.1016/j.jssc.2011.11.042.
Zhang Weixin, E-mail: wxzhang@hfut.edu.cn, Hui, Zeng, Zeheng, Yang, & Qiang, Wang. New strategy to the controllable synthesis of CuInS{sub 2} hollow nanospheres and their applications in lithium ion batteries. United States. doi:10.1016/j.jssc.2011.11.042.
Zhang Weixin, E-mail: wxzhang@hfut.edu.cn, Hui, Zeng, Zeheng, Yang, and Qiang, Wang. Wed . "New strategy to the controllable synthesis of CuInS{sub 2} hollow nanospheres and their applications in lithium ion batteries". United States. doi:10.1016/j.jssc.2011.11.042.
@article{osti_21612890,
title = {New strategy to the controllable synthesis of CuInS{sub 2} hollow nanospheres and their applications in lithium ion batteries},
author = {Zhang Weixin, E-mail: wxzhang@hfut.edu.cn and Hui, Zeng and Zeheng, Yang and Qiang, Wang},
abstractNote = {A new strategy has been presented to the controllable synthesis of CuInS{sub 2} hollow nanospheres based on the Cu{sub 2}O solid nanospheres as the precursor in the absence of any surfactant. Specifically, the CuInS{sub 2} hollow nanospheres result from hydrothermal transformation of the intermediate Cu{sub 7}S{sub 4} hollow nanospheres derived from Cu{sub 2}O solid nanosphere precursor by the Kirkendall effect in the conversion process. The CuInS{sub 2} hollow nanospheres with diameters of about 250 nm are assembly of nanoparticles with an average size of 20-30 nm. The composition, structure, and morphology of the Cu{sub 2}O precursor, the Cu{sub 7}S{sub 4} intermediate, and final CuInS{sub 2} product have been, respectively, characterized by X-ray diffraction (XRD), field-emission scanning electron microscopy (FESEM), and transmission electron microscopy (TEM) with selected area electron diffraction (SAED). Different from investigation of photovoltaic properties, in this work, the as-prepared CuInS{sub 2} hollow nanospheres have been explored as anode materials for rechargeable lithium ion batteries. They deliver a large initial discharge capacity of 1144 mAh g{sup -1} and exhibit good cycle performance with a discharge capacity of 265 mAh g{sup -1} after 20 cycles, which are superior to those of CuInS{sub 2} nanoparticles. The suitable surface area and relatively stable structure of the CuInS{sub 2} hollow nanospheres play an important role in their enhanced electrochemical performance as anode materials. - Graphical abstract: CuInS{sub 2} hollow nanospheres was successfully prepared from Cu{sub 2}O solid nanospheres in the absence of any surfactant, which can deliver a large initial discharge capacity of 1144 mAh g{sup -1} and exhibit good cycle performance. Highlights: Black-Right-Pointing-Pointer CuInS{sub 2} hollow nanospheres were synthesized hydrothermally from Cu{sub 2}O nanospheres. Black-Right-Pointing-Pointer The CuInS{sub 2} hollow nanospheres present high discharge capacities as anode materials. Black-Right-Pointing-Pointer Better cycling performance can be attributed to its hollow structure.},
doi = {10.1016/j.jssc.2011.11.042},
journal = {Journal of Solid State Chemistry},
issn = {0022-4596},
number = ,
volume = 186,
place = {United States},
year = {2012},
month = {2}
}